Enhanced photovoltaic effect from naphtho[2,3-c]thiophene-4,9-dione-based polymers through alkyl side chain induced backbone distortion

2020 ◽  
Vol 8 (29) ◽  
pp. 14706-14712 ◽  
Author(s):  
Xiaoman Bi ◽  
Tao Zhang ◽  
Cunbin An ◽  
Pengqing Bi ◽  
Kangqiao Ma ◽  
...  
Keyword(s):  
Conjugated Polymers ◽  
Photovoltaic Effect ◽  
Side Chain ◽  
Alkyl Side Chain

Two conjugated polymers with different side chain substituted positions were synthesized to study their photovoltaic performances.

Electronic Functions in Liquid-Crystalline Nanostructures with High Polarization

MRS Advances ◽  
2019 ◽  
Vol 4 (31-32) ◽  
pp. 1733-1740
Author(s):  
Masahiro Funahashi
Keyword(s):  
Liquid Crystalline ◽  
Carrier Transport ◽  
Ferroelectric Phase ◽  
Photovoltaic Effect ◽  
Charge Carriers ◽  
Side Chain ◽  
Electronic Charge ◽  
Internal Electric Field ◽  
Alkyl Side Chain ◽  
Perylene Bisimide

AbstractMultifunctionality was created by coupling an electronic charge carrier transport with ionic conductivity or ferroelectricity in polarized liquid crystal phases. Liquid-crystalline perylene bisimide derivatives bearing cyclotetrasiloxane rings and triethylene oxide chains formed nanosegregated columnar structures which could conduct ions as well as electrons. The spin-coated thin films could be insolubilized by the exposure on acid vapors and display electrochromism. Phenylterthiophene derivatives bearing a chiral alkyl side chain exhibited a ferroelectric phase, in which a photovoltaic effect was caused by the interaction between photogenerated charge carriers with the internal electric field formed by the spontaneous polarization of the ferroelectric phase.

Tailoring the microstructure and charge transport in conjugated polymers by alkyl side-chain engineering

2016 ◽  
Vol 4 (2) ◽  
pp. 286-294 ◽  
Author(s):  
Sadiara Fall ◽  
Laure Biniek ◽  
Yaroslav Odarchenko ◽  
Denis V. Anokhin ◽  
Grégoire de Tournadre ◽  
...  
Keyword(s):  
Conjugated Polymers ◽  
Charge Transport ◽  
Electronic Energy ◽  
Side Chain ◽  
Alkyl Side Chain ◽  
Transport Measurements ◽  
Energy Disorder

Transport measurements with in-situ XRD reveal low alkyl side-chain densities to induce an ordered helicoidal conformation with large electronic energy disorder.

scholarly journals The effect of alkyl side chain length on the formation of two semi-crystalline phases in low band gap conjugated polymers

2020 ◽  
Vol 8 (17) ◽  
pp. 5856-5867 ◽  
Author(s):  
Mengmeng Li ◽  
Pieter J. Leenaers ◽  
Martijn M. Wienk ◽  
René A. J. Janssen
Keyword(s):  
Conjugated Polymers ◽  
Band Gap ◽  
Chain Length ◽  
Side Chain ◽  
Structure And Properties ◽  
Alkyl Side Chain ◽  
Crystalline Phases ◽  
Low Band Gap ◽  
Side Chain Length ◽  
Alkyl Chains

The length of solubilizing alkyl chains affects the formation, structure, and properties of two semi-crystalline phases in conjugated polymers.

An isomerized alkyl side chain enables efficient nonfullerene organic photovoltaics with good tolerance to pre/post-treatments

2021 ◽  
Vol 5 (7) ◽  
pp. 3050-3060 ◽  
Author(s):  
Chenyu Han ◽  
Huanxiang Jiang ◽  
Pengchao Wang ◽  
Lu Yu ◽  
Jianxiao Wang ◽  
...  
Keyword(s):  
Organic Photovoltaics ◽  
Side Chain ◽  
Alkyl Side Chain ◽  
Good Tolerance

An alkyl isomerization strategy is reported to finely modulate the crystallinity of nonfullerene acceptors as well as their photovoltaic responses to post-treatments.

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